CN113093434A

CN113093434A - Display device

Info

Publication number: CN113093434A
Application number: CN201911342801.5A
Authority: CN
Inventors: 岳春波; 杨兰兰; 乔明胜; 李富琳
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2021-07-09

Abstract

The invention discloses a display device, which comprises a backlight module, a display panel and a control module, wherein the backlight module is used for providing backlight; the display panel is positioned on the light emitting side of the backlight module and used for displaying images; the backlight module includes: the miniature LED lamp panels are used as backlight sources; the elastic connecting piece is positioned between two adjacent miniature light-emitting diode lamp panels and is used for connecting the two adjacent miniature light-emitting diode lamp panels; the positions of two ends of the elastic connecting piece facing the miniature light-emitting diode lamp panel respectively comprise a groove, and the edge of the miniature light-emitting diode lamp panel is inserted into the corresponding groove. Elastic connecting piece adopts elastic material to make, can protect the edge of miniature emitting diode lamp plate like this, even receive under the circumstances of external force, takes place friction and collision between miniature emitting diode lamp plate and the recess, can not harm miniature emitting diode lamp plate yet.

Description

Display device

Technical Field

The invention relates to the technical field of display, in particular to a display device.

Background

With the development of display technology, liquid crystal display technology is widely used in the display field. The lcd panel itself cannot emit light, and the backlight module is required to provide the required brightness for displaying. Due to the limitation of the characteristics of the liquid crystal panel, light leakage occurs to different degrees, and the improvement of the contrast ratio has a bottleneck. Therefore, a scheme for performing local dimming (local dimming) on the backlight module is provided, and backlights in different areas can be independently controlled, so that when the backlight brightness corresponding to a high-brightness part in a displayed image can be maximized, and the backlight brightness corresponding to a dark part in the image can be reduced, so that the displayed image can achieve better contrast.

The micro Light Emitting Diode (Mini LED) has become a current hotspot in the liquid crystal display technology as a backlight, which is different from the traditional liquid crystal display backlight scheme adopting a side-in type Light guide plate, and a huge amount of Mini LEDs are adopted as the backlight source, so that not only can the backlight be thinned, but also more refined dynamic control can be realized, and the dynamic contrast of the liquid crystal display is improved.

The current large-size display device usually adopts a mode of splicing a plurality of Mini LED lamp panels, and the problems of warping and fracture of the Mini LED lamp panels at the joint positions under the action of external force are easily caused in the splicing process.

Disclosure of Invention

The invention provides a display device which is used for preventing a Mini LED from being damaged during splicing.

The present invention provides a display device including:

the backlight module is used for providing backlight;

the display panel is positioned on the light emitting side of the backlight module and used for displaying images;

the backlight module includes:

the miniature LED lamp panels are used as backlight sources;

the elastic connecting piece is positioned between two adjacent miniature light-emitting diode lamp panels and is used for connecting the two adjacent miniature light-emitting diode lamp panels;

the positions of the two ends of the elastic connecting piece facing the miniature light-emitting diode lamp panel respectively comprise a groove, and the edge of the miniature light-emitting diode lamp panel is inserted into the corresponding groove.

In a possible implementation manner, in the display device provided by the invention, the elastic connecting piece is strip-shaped, and the extending direction of the elastic connecting piece is parallel to the splicing seam between two adjacent micro light-emitting diode lamp panels.

In a possible implementation manner, in the display device provided by the present invention, the material of the elastic connection member is rubber or silicone.

In a possible implementation manner, in the display device provided by the invention, the elastic connecting piece is doped with reflective particles.

In a possible implementation manner, in the display device provided by the invention, the reflective particles are titanium dioxide particles.

In one possible implementation manner, in the display device provided by the present invention, the doping concentration of the titanium dioxide particles is 15% to 30%.

In a possible implementation manner, in the display device provided by the invention, a surface of the elastic connecting piece facing to the light exit side of the micro light emitting diode lamp panel is an arc surface.

In a possible implementation manner, in the display device provided by the invention, the thickness of the side wall of the groove of the elastic connecting piece, which is close to the light exit side of the micro light-emitting diode lamp panel, is less than 500 μm, and the thickness of the side wall of the groove of the elastic connecting piece, which is away from the light exit side of the micro light-emitting diode lamp panel, is less than 500 μm.

In a possible implementation manner, in the display device provided by the present invention, the micro light emitting diode lamp panel includes:

a driving substrate for providing a driving signal;

the micro light-emitting diode is positioned on the driving substrate;

the reflective coating is positioned on the surface of one side, close to the micro light-emitting diode, of the driving substrate;

and the packaging layer covers the surface of one side of the micro light-emitting diode, which is far away from the driving substrate.

In a possible implementation manner, in the display device provided by the present invention, the backlight module further includes:

the diffusion plate is positioned on the light emitting side of the miniature light emitting diode lamp panel, and a set distance is reserved between the diffusion plate and the miniature light emitting diode lamp panel;

and the optical diaphragm is positioned on one side of the diffusion plate, which deviates from the miniature light-emitting diode lamp panel.

The invention has the following beneficial effects:

the present invention provides a display device including: the backlight module is used for providing backlight; the display panel is positioned on the light emitting side of the backlight module and used for displaying images; the backlight module includes: the miniature LED lamp panels are used as backlight sources; the elastic connecting piece is positioned between two adjacent miniature light-emitting diode lamp panels and is used for connecting the two adjacent miniature light-emitting diode lamp panels; the positions of two ends of the elastic connecting piece facing the miniature light-emitting diode lamp panel respectively comprise a groove, and the edge of the miniature light-emitting diode lamp panel is inserted into the corresponding groove. Elastic connecting piece adopts elastic material to make, can protect the edge of miniature emitting diode lamp plate like this, even receive under the circumstances of external force, takes place friction and collision between miniature emitting diode lamp plate and the recess, can not harm miniature emitting diode lamp plate yet.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic cross-sectional structure diagram of a display device according to an embodiment of the present invention;

fig. 2 is one of schematic cross-sectional structural diagrams of a spliced Mini LED lamp panel according to an embodiment of the present invention;

fig. 3 is one of schematic top view structural diagrams of a spliced Mini LED lamp panel according to an embodiment of the present invention;

fig. 4 is a second schematic top view of the spliced Mini LED lamp panel according to the embodiment of the present invention;

fig. 5 is a schematic cross-sectional structure view of a Mini LED lamp panel according to an embodiment of the present invention;

fig. 6 is a schematic diagram of an emergent light path of a spliced Mini LED lamp panel in the prior art;

fig. 7 is one of schematic emergent light paths of the spliced Mini LED lamp panel according to the embodiment of the present invention;

fig. 8 is a second schematic cross-sectional structure view of the spliced Mini LED lamp panel according to the embodiment of the present invention;

fig. 9 is a second schematic diagram of an emergent light path of the spliced Mini LED lamp panel according to the embodiment of the present invention;

fig. 10 is a schematic cross-sectional structure view of a backlight module according to an embodiment of the invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, the present invention is further described with reference to the accompanying drawings and examples. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted. The words expressing the position and direction described in the present invention are illustrated in the accompanying drawings, but may be changed as required and still be within the scope of the present invention. The drawings of the present invention are for illustrative purposes only and do not represent true scale.

Fig. 1 is a schematic cross-sectional structure diagram of a display device according to an embodiment of the present invention, and as shown in fig. 1, the display device according to the embodiment of the present invention includes:

the backlight module 100 is used for providing backlight.

The backlight module 100 can uniformly emit light in the whole light emitting surface, and is used for providing light with sufficient brightness and uniform distribution for the display panel, so that the display panel can normally display images.

The display panel 200 is located on the light emitting side of the backlight module 100 for displaying images.

The display panel 200 has a plurality of pixel units arranged in an array, and each pixel unit can independently control the transmittance and color of light incident to the pixel unit from the backlight module 100, so that the light transmitted by all the pixel units forms a displayed image.

The display device provided by the embodiment of the invention can be a display device such as a liquid crystal display screen, a liquid crystal display, a liquid crystal television and the like, and can also be a mobile terminal such as a mobile phone, a tablet personal computer, an intelligent photo album and the like. The display device adopts the backlight module to provide backlight, and the display panel modulates the light emitted by the backlight module to realize image display.

Fig. 2 is one of schematic cross-sectional structural diagrams of a spliced Mini LED lamp panel according to an embodiment of the present invention, and fig. 3 and 4 are schematic top-view structural diagrams of a spliced Mini LED lamp panel according to an embodiment of the present invention, as shown in fig. 2 to 4, where the backlight module according to an embodiment of the present invention includes: mini LED lamp panel 11 and elastic connector 12 who connects Mini LED lamp panel.

And the Mini LED lamp panels are used as backlight sources.

The backlight module provided by the embodiment of the invention can adopt a miniature light emitting diode (Mini LED) lamp panel as a light source, the size of the Mini LED is smaller than that of the traditional LED, and a huge number of Mini LEDs are adopted as backlight sources, so that more refined dynamic control can be realized, and the dynamic contrast of liquid crystal display is improved.

And the elastic connecting piece 12 is positioned between the two adjacent Mini LED lamp panels 11 and used for connecting the two adjacent Mini LED lamp panels 11.

As shown in fig. 2, the positions of the two ends of the elastic connecting piece 12 facing the Mini LED lamp panels respectively include a groove C, and the edges of the Mini LED lamp panels 11 on the two sides are respectively inserted into the corresponding grooves C, so that the two Mini LED lamp panels can be spliced.

Elastic connection member 12's both ends have two recess C, when concatenation Mini LED lamp plate 11, can with Mini LED lamp plate disect insertion to above-mentioned recess C, elastic connection member 12 adopts elastic material to make, can protect Mini LED lamp plate 11's edge like this, even under the condition that receives external force, take place friction and collision between Mini LED lamp plate 11 and the recess C, can not harm the Mini LED lamp plate yet.

As shown in fig. 3, the elastic connecting member 12 provided in the embodiment of the present invention is strip-shaped, and the extending direction of the elastic connecting member 12 is parallel to the splicing seam between two adjacent Mini LED lamp panels 11. It can be seen from fig. 2 that the cross-section of the elastic connecting piece 12 is in an i shape, the part connecting the grooves C at the two ends has a certain thickness, the connecting part is located between the two Mini LED lamp panels 11 and is in direct contact with the side faces of the Mini LED lamp panels 11, so that the elastic connecting piece 12 is arranged into a strip shape, and the side walls of the Mini LEDs can be better protected along the splicing seams between the two Mini LED lamp panels 12.

The material of the elastic connecting member 12 may be rubber or silicon rubber or other elastic material. In order to ensure reflectivity, white rubber or white silica gel is particularly used. The manufacturing process can adopt mould forming, and the height of the groove C on the elastic connecting piece 12 is adapted to the thickness of the Mini LED lamp panel 11.

As shown in fig. 3, when two Mini LED lamp panels 11 are spliced, an elastic connector 12 may be disposed at a splicing seam between the two Mini LED lamp panels 11, as shown in fig. 4, when more than two Mini LED lamp panels 11 are spliced, the elastic connector 12 may be disposed between the adjacent Mini LED lamp panels 11, thereby protecting the Mini LED lamp panels 11 from being damaged.

Fig. 5 is a schematic cross-sectional structure view of a Mini LED lamp panel provided in an embodiment of the present invention, and as shown in fig. 5, the miniature light emitting diode lamp panel includes: a driving substrate 111, micro light emitting diodes 112, and a reflective coating 113.

And a driving substrate 111 for providing a driving signal.

The driving substrate 111 is used for providing a driving signal for the micro light emitting diode 112, and in a specific implementation, the driving substrate 111 may adopt a Printed Circuit Board (PCB), which has a high production cost, a high thermal conductivity and a high thermal expansion rate, and the Mini LED has a small size, and a small misalignment of the PCB may cause poor soldering of the Mini LED. The Mini LED has high requirement on the stability of the substrate, the driving substrate in the embodiment of the invention can adopt a glass substrate, the glass substrate has good stability and low cost, the preparation precision can be improved by matching with an etching process, and the product yield is ensured.

The yield of the Mini LED lamp panel depends on the yield of each Mini LED on the lamp panel, so the larger the size of the Mini LED lamp panel 11 is, the larger the difficulty of ensuring that it has a higher yield is. Therefore, the embodiment of the invention adopts a mode of splicing a plurality of Mini LED lamp panels to be applied to a large-size display device, so that the manufacturing difficulty of the Mini LED lamp panels can be reduced, and the quality of the backlight source can be improved.

And the micro light emitting diode 112 is positioned on the driving substrate 111.

The micro light emitting diode 112 is different from a general light emitting diode, and is specifically referred to as a micro light emitting diode chip. The manufacturing processes of the micro light-emitting diode 112 and the driving substrate 111 are independent, a bonding pad for welding the Mini LED is formed on the surface of the driving substrate when the manufacturing is completed, the manufactured Mini LED is transferred to the corresponding bonding pad and then welded, and the Mini LED and the driving substrate 111 can be electrically connected. Because the micro light emitting diodes 112 have small sizes, the Mini LEDs can realize finer regional dimming in a direct type backlight module, realize high dynamic contrast, and have better light transmission uniformity, higher contrast and more bright and dark details compared with a lateral type backlight module.

In the embodiment of the present invention, the size of the micro light emitting diode 112 is between 50 μm and 300 μm, and the micro light emitting diode 112 may be a single-color micro light emitting diode, for example, a white Mini LED may be used as a backlight, or a blue Mini LED may be used to mix with a quantum dot material to form white light to provide a backlight for the display panel. The distance between the Mini LEDs can be very small, the light mixing is relatively uniform, thick optical films can be removed, the light mixing distance is reduced, and the design of an ultrathin backlight module is realized. The Mini LED can be matched with a flexible driving substrate to achieve a high-curved-surface backlight mode; the Mini LED lamp panel can also be subjected to special-shaped cutting or special-shaped design and is applied to various fields such as mobile phones, televisions, vehicle-mounted panels, electronic competition notebooks and the like.

And a reflective coating 113 disposed on a surface of the driving substrate 111 on a side close to the micro light emitting diodes 112.

The reflective coating 113 may be a protective layer located above the driving substrate 111 for protecting the circuits on the driving substrate 111, and also has an insulating function. When the material with the reflection property is coated on the surface of the driving substrate 111, the protective layer has a reflection function, the emergent light of the micro light-emitting diode 112 has a large-range emergent angle, and the light emitted by the micro light-emitting diode 112 to one side of the driving substrate 111 can be reflected to the emergent side of the Mini LED lamp panel by the reflective coating 113, so that the utilization efficiency of the light is improved. In the embodiment of the present invention, the reflective coating 113 may be made of a reflective material such as white oil, and after the driving substrate 111 is wired, a layer of white oil is coated on the surface of the driving substrate to expose the position where the bonding pad for bonding the micro light emitting diode 112 is located, so that the reflective coating 113 is coated on the surface where the micro light emitting diode 112 is not located.

And the packaging layer 114 covers the surface of the micro light-emitting diode 112 on the side away from the driving substrate 111.

Moisture resistance is considered in the application process of the Mini LED lamp panel, so that a packaging structure needs to be formed on the surface of the Mini LED. At present, the mainly adopted packaging forms are POB and COB, and compared with the POB, the COB has the advantages of lower cost and simpler processing technology. In the actual manufacturing process, a protective adhesive material can be coated on the whole surface of the Mini LED to form a packaging layer, and the packaging mode of coating the protective adhesive on the whole layer has higher production efficiency; alternatively, a protective adhesive may be dispensed only on the surface of the Mini LED to form the structure of the encapsulation layer 114 as shown in fig. 5, and the encapsulation manner of dispensing the protective adhesive may save materials and reduce cost. In specific implementation, any packaging manner may be adopted according to actual needs, and is not limited herein.

When the backlight module is specifically applied, the backlight module is required to be matched with the substrate film for use, a diffusion plate can be arranged on the light emitting side of the Mini LED lamp panel 11, and the diffusion plate can homogenize the light emitted by the Mini LED lamp panel 11 further so as to enable the backlight module to emit uniform backlight.

Fig. 6 is the emergent light path schematic diagram of the Mini LED lamp plate of concatenation among the prior art, as shown in fig. 6, the most of light of miniature emitting diode 112 outgoing is emergent to the diffuser plate 13 of light-emitting side, because the scattering effect of diffuser plate 13 has some light to reflect back Mini LED lamp plate one side again, reflect back the light-emitting side by reflective coating 113 on the Mini LED lamp plate again, from this through the finite reflection oscillation can promote Mini LED's mixed light effect, make the light of Mini LED lamp plate outgoing more even.

Because the splicing seams exist between the adjacent Mini LED lamp panels, the width of the splicing seams can be further increased in order to avoid damaging the lamp panels due to collision between the Mini LED lamp panels, so that the distance between the Mini LEDs on the two sides of the splicing seams is increased, and the positions of the two Mini LED lamp panels above the splicing seams are not irradiated by too much light; and the light reflected by the diffusion plate 13 to one side of the Mini LED lamp panel is incident into the splicing seam and cannot be reflected again, so that a shadow is formed at the splicing position of the Mini LED lamp panel, and the backlight brightness is not uniform.

In order to overcome the above problems, in the embodiment of the present invention, the elastic connection member 12 is doped with reflective particles, so that the elastic connection member 12 also has the same reflective function as the reflective coating 113, and thus, after light enters the elastic connection member 12, the light is reflected to the light exit side of the Mini LED lamp panel by the elastic connection member 12, so as to increase the brightness at the splicing position of the Mini LED lamp panel, and make the exit brightness of the backlight module more uniform.

Fig. 7 is a schematic diagram of an exit light path of the spliced Mini LED lamp panel according to the embodiment of the present invention, as shown in fig. 7, most of light emitted from the micro light emitting diodes 112 exits to the diffusion plate 13 on the light exit side, and a part of light is reflected back to one side of the Mini LED lamp panel due to the scattering effect of the diffusion plate 13. When the light reflected by the diffusion plate 13 is incident on the Mini LED lamp panel, the light is reflected back to the light emitting side by the reflective coating 113 on the Mini LED lamp panel; when the light reflected by the diffusion plate 13 enters the splicing seam of the Mini LED lamp panel, the elastic connecting piece 12 in the splicing seam reflects the light back to the light emitting side; therefore, the light mixing effect of the Mini LED can be improved through the limited reflection oscillation, the brightness of the splicing position of the Mini LED lamp panel is basically consistent with that of the Mini LED lamp panel through the elastic connecting piece 12, and the emergent light of the Mini LED lamp panel is more uniform.

In particular implementations, the resilient material of the resilient connecting member 12 may be doped with reflective particles depending on the material used for the reflective coating 113 and the reflectivity. In the embodiment of the present invention, white oil may be coated on the surface of the driving substrate to form the reflective coating 113, the reflective material in the white oil may be titanium dioxide particles, and in order to make the elastic connection member 12 and the reflective coating 113 have the same reflective effect, the elastic connection member 12 may be doped with titanium dioxide particles in the embodiment of the present invention, so that the reflective properties of the reflective coating 113 and the elastic connection member 12 are protected to be consistent.

In practical application, 15% -30% of titanium dioxide particles can be doped in the rubber or silica gel material, and then the rubber or silica gel doped with the titanium dioxide particles is injected into a mold for curing and molding. Therefore, the elastic connecting piece 12 can not only protect the Mini LED lamp panels on the two sides, but also eliminate shadows at the splicing positions of the Mini LED lamp panels.

Fig. 8 is a second schematic cross-sectional structure view of the spliced Mini LED lamp panel according to the embodiment of the present invention, and as shown in fig. 8, a surface of the elastic connecting member 12 facing the light exit side of the micro LED lamp panel 11 according to the embodiment of the present invention may be set to be an arc surface.

The upper surface with elastic connection spare 12 designs into the cambered surface, for the plane, can play the effect of adjusting reflection light outgoing angle to the cambered surface can receive the light that comes from all directions, and when carrying out the reflection of light, is close to diffuse reflection's effect more, can make the light of Mini LED lamp plate concatenation position top more even like this.

Fig. 9 is a second schematic view of an exit light path of the spliced Mini LED lamp panel according to the embodiment of the present invention, as shown in fig. 9, most of light emitted from the micro light emitting diodes 112 exits to the diffusion plate 13 on the light exit side, and a part of light is reflected back to one side of the Mini LED lamp panel due to the scattering effect of the diffusion plate 13. When the light reflected by the diffusion plate 13 is incident on the Mini LED lamp panel, the light is reflected back to the light emitting side by the reflective coating 113 on the Mini LED lamp panel; when the light reflected by the diffusion plate 13 is incident to the splicing seam of the Mini LED lamp panel, the incident light is uniformly reflected to the light emitting side by the cambered surface of the elastic connecting piece 12 positioned in the splicing seam, so that the light above the splicing position of the Mini LED lamp panel is more uniform, and the brightness of the splicing position of the Mini LED lamp panel is basically consistent with that of the Mini LED lamp panel.

The Mini LED is small in size, and light rays are emitted from the upper side and the side face of the Mini LED, so that the thickness of the side wall of the groove C of the elastic connecting piece 12 is not too large, and the situation that the emitting efficiency of the light rays is influenced due to the fact that the height of the elastic connecting piece 12 is too large to shield the light rays emitted from the Mini LED can be avoided. In the embodiment of the present invention, as shown in fig. 8, the thickness of the side wall of the groove C of the elastic connecting member 12 close to the light exit side of the micro light emitting diode lamp panel 11 is a, and the thickness of the side wall of the groove C of the elastic connecting member 12 away from the light exit side of the micro light emitting diode lamp panel 11 is b, and when manufacturing is performed, a and b may be designed to be equal to each other and are both smaller than 500 μm. Therefore, the shielding of the elastic connecting piece 12 on the Mini LED emergent light can be avoided, and meanwhile, the effect of protecting the Mini LED lamp panel can be achieved.

Fig. 10 is a schematic cross-sectional structure view of a backlight module according to an embodiment of the present invention, and as shown in fig. 10, the backlight module according to the embodiment of the present invention further includes: a diffuser plate 13 and an optical film 14.

And the diffusion plate 13 is positioned on the light emitting side of the miniature light emitting diode lamp panel 11, and a set distance is reserved between the diffusion plate 13 and the miniature light emitting diode lamp panel 11.

The diffusion plate 13 is usually provided with a scattering particle material, and after light enters the diffusion plate, the scattering particle material continuously refracts and reflects the light, so as to scatter the light, and further realize the function of light uniformization. The material of the diffuser plate is generally at least one selected from the group consisting of polymethyl methacrylate (PMMA), Polycarbonate (PC), polystyrene-based material (PS), and polypropylene (PP), but not limited thereto. The diffusion plate 13 can further homogenize the light emitted from the Mini LED lamp panel 11, and then the homogenized light is emitted to the optical film 14.

And the optical film 14 is positioned on one side of the diffusion plate 13, which is far away from the micro light-emitting diode lamp panel 11.

The optical membrane 14 may include various types of membranes, for example, the optical membrane 14 may include: brightening prism sheet, quantum dot film, reflection type polaroid, etc. The prism lens can adjust the light emergent angle and increase the light emergent brightness of the front surface of the backlight module. The quantum dot film can provide quantum dot luminescence with higher monochromaticity, and is applied to quantum dot televisions to improve the display color gamut of the televisions. The reflective polarizer can improve the utilization rate of light, and simultaneously, the emergent light has polarization property, thereby omitting the use of the polarizer under the liquid crystal display panel.

The display device provided by the embodiment of the invention comprises: the backlight module is used for providing backlight; the display panel is positioned on the light emitting side of the backlight module and used for displaying images; the backlight module includes: the miniature LED lamp panels are used as backlight sources; the elastic connecting piece is positioned between two adjacent miniature light-emitting diode lamp panels and is used for connecting the two adjacent miniature light-emitting diode lamp panels; the positions of two ends of the elastic connecting piece facing the miniature light-emitting diode lamp panel respectively comprise a groove, and the edge of the miniature light-emitting diode lamp panel is inserted into the corresponding groove. Elastic connecting piece adopts elastic material to make, can protect the edge of miniature emitting diode lamp plate like this, even receive under the circumstances of external force, takes place friction and collision between miniature emitting diode lamp plate and the recess, can not harm miniature emitting diode lamp plate yet.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A display device, comprising:

the backlight module is used for providing backlight;

the backlight module includes:

the miniature LED lamp panels are used as backlight sources;

2. The display device according to claim 1, wherein the elastic connecting member is strip-shaped, and the extending direction of the elastic connecting member is parallel to a splicing seam between two adjacent micro light-emitting diode lamp panels.

3. The display device as claimed in claim 2, wherein the material of the elastic connecting member is rubber or silicone.

4. The display device of claim 2, wherein the elastic connection member is doped with reflective particles.

5. The display device of claim 4, wherein the reflective particles are titanium dioxide particles.

6. The display device of claim 5, wherein the titanium dioxide particles are doped at a concentration of 15% to 30%.

7. The display device as claimed in claim 4, wherein the surface of the elastic connecting member facing the light emitting side of the micro light emitting diode lamp panel is an arc surface.

8. The display device as claimed in any one of claims 1 to 7, wherein the thickness of the side wall of the groove of the elastic connecting member close to the light exit side of the micro light emitting diode lamp panel is less than 500 μm, and the thickness of the side wall of the groove of the elastic connecting member away from the light exit side of the micro light emitting diode lamp panel is less than 500 μm.

9. The display device of any one of claims 1-7, wherein the micro light emitting diode lamp panel comprises:

a driving substrate for providing a driving signal;

the micro light-emitting diode is positioned on the driving substrate;

10. The display device according to any one of claims 1 to 7, wherein the backlight module further comprises: